From mboxrd@z Thu Jan 1 00:00:00 1970 From: hdegoede@redhat.com (Hans de Goede) Date: Thu, 28 Jan 2016 09:15:57 +0100 Subject: [linux-sunxi] Problem with Allwinner H3 clocks In-Reply-To: <20160127200217.14dce96ade71cf81bc82e6f6@free.fr> References: <20160127084607.665fb8c38eeb5733ce4232da@free.fr> <20160127103714.58312b152adb4148bae2f93b@free.fr> <56A8D5E5.30701@gmail.com> <20160127175512.87caf31b5e21a1fec91507f2@free.fr> <56A9098A.5010107@redhat.com> <20160127200217.14dce96ade71cf81bc82e6f6@free.fr> Message-ID: <56A9CE3D.4020906@redhat.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi, On 27-01-16 20:02, Jean-Francois Moine wrote: > On Wed, 27 Jan 2016 19:16:42 +0100 > Hans de Goede wrote: > >>> To be sure, I generated a pure 4.5-rc1 kernel. Same result: no UART. >>> Maybe... one more information: I am using Allwinner's u-boot. >> >> Could be that that is the culprit, why are you not using upstream u-boot? >> upstream u-boot has H3 and orangepi-pc support now. > > Yes, but using the upstream u-boot may hide the clock problem. I agree that that could be the case. Would be interesting to figure out what exactly is needed to get the upstream kernel to work properly with allwinner's u-boot. p.s. Did I understand correctly that you are working on a kms (or fbdev) driver for the H3? A fellow Dutch hacker (Jelle van der Waa, added to the Cc) is looking into adding H3 video console support to upstream u-boot. If you already have a lit-up display with an upstream kernel it would be great if you could share that, even if it is still wip. Regards, Hans